Very cool! You have your own twist to the 'chain' approach to the theme by driving a car instead. This adds a level of difficulty curve to the gameplay. I dont think I ever fully grasped it as it was a bit difficult for me.
Some good things:
Very simple game design. It's easy to communicate to the player what you're suppose to do.
The game feels solid actually, as a whole. Controls are good, car feels good, hits feel good with well implemented sound. Music can be a bit obnoxious with long playtime though.
Some caveats:
From a design standpoint, I personally suggest have an arrow infront of the car so the player always knows where the car is driving towards. It can be a bit messy trying to swing the mace towards the things to destroy, as well as micro managing the car driving at the beginning.
Otherwise, not bad!